package com.ds.common.org.expression.person;

import java.util.ArrayList;
import java.util.List;
import java.util.Stack;
import java.util.StringTokenizer;

import com.ds.common.expression.ParseException;
import com.ds.common.expression.function.Function;
import com.ds.org.OrgManager;
import com.ds.org.Person;
import com.ds.org.PersonNotFoundException;
import com.ds.server.OrgManagerFactory;

/** 
 * <p>Title: JDSORG组织机构中间件</p>
 * <p>Description: </p>
 * <p>Copyright: jds Copyright (c) 2003-2008</p>
 * <p>Company: www.justdos.net</p>
 * @author wenzhangli
 * @version 2.0
 */
public class GetPersonByIDs extends Function {
	public GetPersonByIDs() {
		numberOfParameters = 1;
	}

	public void run(Stack stack) throws ParseException
	{
		checkStack(stack); // check the stack

		stack.push(perform(stack.pop()));
	}

	protected Person[] perform(Object param1) throws ParseException {
		if (param1 == null) {
			return new Person[0];
		}
		if (param1 instanceof String) {
		OrgManager accountManager = OrgManagerFactory.getOrgManager();
			
			String orgIds = (String)param1;
			StringTokenizer st = new StringTokenizer(orgIds, ":");
			List result = new ArrayList();
			while(st.hasMoreTokens()) {
				try {
					result.add(accountManager.getPersonByID(st.nextToken()));
				} catch (PersonNotFoundException e) {
				}
			}
			return (Person[])result.toArray(new Person[result.size()]);
		}
		throw new ParseException("Invalid parameter type in:" + this.getClass().getName() + ", param1 is " + param1.getClass().getName());
	}
}